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2 years ago

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In a carton of 10 eggs three were broken. Steven took 2 unbroken eggs and baked omelettes. A little later he took another egg ou

t of the carton. What is the probability that this egg was not broken?

1 answer:

Natali [406]2 years ago

4 0

After he got 2 unbroken eggs there were 5 unbroken ones and 3 broken. In total 8 eggs.

The probability that the egg was not broken is <u>5/8</u> or <u>62,5%</u>.

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2 years ago

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Solve the system by the substitution method. Show your work.<br> 2y - x = 5<br> x^2 + y^2 - 25 = 0

Elza [17]

2y - x = 5
x^2 + y^2 - 25 = 0

x = 2y - 5

(2y-5)^2 + y^2 - 25 = 0
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2 years ago

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Hatshy [7]

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If the ríbbon costs 10 cents per foot what is the total cost of ribbon in dollars

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2 years ago

Identify the data set that could be quadratic. HELP ASAP!!

Ne4ueva [31]

Answer:

Option B can be quadratic.

Step-by-step explanation:

Take a look at the data.

A quadratic equation is of the form ,

$y = ax^{2} +bx + c$ ,

where, a,b,c are constants.

<em>To find an unknown equation of 3 variables,</em>

<em>we need 3 points lying on the equation.</em>

here they have given, 5 points, meaning all should lie on the curve.

<em>For first option,</em> inserting first 3 points to find equation, we get equation as,

$y = x^{2} -4x +11$ , but the rest points don't satisfy the curve.

So first option is not quadratic.

Similarly, it can be shown that option C and D are also not quadratic.

While, in option B, it is clear that for every y, x is y squared,

$x = y^{2}$ , thus quadratic in nature.

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2 years ago